Background loop
[计] 后台坏
🧩 词语组成解析
loop
[lup]
n. 圈，环;[医]宫内避孕环;回路;弯曲部分;
vt.& vi. （使）成环，（使）成圈;以环连结;使翻筋斗;
🗣️ 情景例句
Please come in, Mr. Wilson.
请进，威尔逊先生。
Following the dinner will be addresed by the candidate.
晚饭后将由候选人作演讲。
He sent the journalist two more faxes, but received no reply.
他给记者先后发去两份传真，但对方毫无反应。